1. This 3DS once had a Nintendo ID on it thats no longer here because it was system transferred away. However I cant go into the eShop because I get a message "You cannot use this Nintendo Network ID on this system" and as far as I'm aware theres no option to not use a Nintendo ID or sign in with another. Am I going to have to format my 3DS in order to clear the history of the previous ID and disassociate it? 2. Completely different 3DS that has a Nintendo ID on it but I want it on another 3DS separate from the first one. Can I sign out from this one and sign in with the one I want it on or is my only option to system transfer?